How is the performance of the iPhone XS's Intel modem chip compared to the Qualcomm chip? Test results are released

For iPhone XS series, which reported many troubles of communication speed degradation for both LTE and Wi-Fi, Cellular Insights , which performs mobile terminal communication test, carries out a comparison test with rival machines such as old iPhone X and Galaxy Note 9 We are doing and publishing the test results.

iPhone XS Crushes X in LTE Speeds, But Still Falls Short of Qualcomm | News & Opinion | PCMag.com
https://www.pcmag.com/news/364116/iphone-xs-crushes-x-in-lte-speeds-but-still-falls-short-of

The two LTE chips of iPhone X were offered by Intel and Qualcomm, but due to the brawling court battle between Apple and Qualcomm , iPhone XS series exclusively offers Intel a modem chip "XMM 7560" I will. A comparison test on iPhone XS Max's LTE speed with Qualcomm exclusion compared with iPhone XS Max and Samsung Galaxy Note 9 with older iPhone X and Qualcomm's latest chip "X 20" I am doing.

In comparative experiments, using the North American version of iPhone XS Max and older iPhone X, Galaxy Note 9, Google Pixel 2, including three major US telecom major AT & T, T-Mobile, Verizon and Canada's major cellular lines It has been tested in the form of weakening the signal until the signal strength can not be received from -85 dBm on the Band 4 20 MHz channel.

First of all, a conspicuous large speed difference was seen compared with high-speed communication. The top three models of iPhone XS Max, Galaxy Note 9, and Pixel 2 that adopt 4 × 4 Mimo realize double the communication speed of iPhone X when the signal is good. As the condition of the signal gets worse, the speed decreases for all models, and the speed difference between the top three models and iPhone X tends to shrink. However, as the signal condition gets worse, the iPhone XS Max is the first to start falling in speed from the top three models, and it seems that Galaxy Note 9 is the most compatible with signal degradation.

If the signal condition below -120 dBm is bad Expanding the result of the test will result in the following graph. iPhone XS Max is superior to iPhone X, but you can see that it does not match Galaxy Note 9 and Pixel 2 which adopt Qualcomm chip as well. As far as the performance of the modem chip is concerned, there still seems to be one day long in Qualcomm.

In addition, iPhone XS and iPhone XS Max equipped with the same XMM 7560 did not confirm a significant difference in mobile communication performance.

In addition, Ookla of Speedtest developer compares average communication speed between iPhone XS and iPhone X from the application use database.

The graph below shows "the difference between iPhone XS and iPhone X" on mobile communication speeds by telecommunications companies in the US and Canada. Speed ​​difference in AT & T · T-Mobile, Verizon, Sprint American carriers is only 6.6 MB / s on average, but Canada has an average speed of 20.2 MB / s, which is a large speed difference. The advantage of iPhone XS series over iPhone X seems to be remarkable in Canada.

Compared to iPhone X, iPhone 8, iPhone 7, and iPhone XS as the old model this feeling. For Canadian Telus and Rogers, iPhone 7 users seem to be worth having the latest model.

Also, comparing the download speed of the United States like this. Galaxy Note 9 is the top with an average of 43.2 MB / s. Even in Canada, Galaxy Note 9 is an average of 97.7 MB / s, iPhone XS averages 85.4 MB / s, and at communication speed Galaxy Note 9 seems to be the winner of iPhone XS.

As for older iPhone X, when comparing it between iOS 11 and iOS 12, it was confirmed that clear signal trouble at iOS 12 was confirmed when the signal was bad. Considering also that iPhone XS series also reported numerous reports of communication problems, it seems likely that early iOS 12 may have problems with the performance of mobile communication.